Break­through On Gas Sep­a­ra­tion Techs

The tech­nique will help com­pa­nies separate pure eth­yl­ene while low­er­ing costs

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Sci­en­tists from China, Ire­land and the United States have used a new process to separate eth­yl­ene from a gas mix­ture at much lower cost. Eth­yl­ene, a ma­jor raw ma­te­rial for plas­tic, rub­ber and paint pro­duc­tion, must be sep­a­rated from acety­lene, a byprod­uct, in or­der to man­u­fac­ture these prod­ucts. The new sep­a­ra­tion process is con­sid­ered a break­through, as the amount of acety­lene ab­sorbed is 5.7 times as much as the cur­rent tech­nique, Pro­fes­sor Xing Huabin, a mem­ber of the re­search team from Zhe­jiang Univer­sity, said last Fri­day. Mr Xing said the tech­nique will help com­pa­nies separate purer eth­yl­ene while low­er­ing costs be­cause of the new en­ergy-sav­ing sep­a­ra­tion process. The re­search, jointly con­ducted by Zhe­jiang Univer­sity, Univer­sity of Lim­er­ick of Ire­land and other in­sti­tu­tions from the United States, the Nether­lands and Saudi Ara­bia, was pub­lished in the jour­nal Science on Thurs­day. Referees of the jour­nal said the work has set a new “bench­mark” for sep­a­ra­tion of the two chem­i­cals, call­ing the pu­rifi­ca­tion ca­pac­ity “ex­cep­tional.”

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